<ul class="img-list">
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>
<div class="" style="position:absolute; bottom:0; width:100%;">
    <button type="button" class="btn btn-success btn-lg btn-block" style="border-radius:0;">上传图片</button>
</div>
<script>

</script>